package com.kabu.hashmap8;

/**
 * @author jiawuwei
 * @Copyright: Copyright (c) 兆日科技股份有限公司  2020
 * @date 2020/8/18,11:23
 */
public class Test {
    public static void main(String[] args) {
        HashMap<String, String> map = new HashMap<>();
        map.put("1","1");
        map.get("1");
        map.remove("1");
        ConcurrentHashMap<Integer, Integer> cMap = new ConcurrentHashMap<>();
        cMap.put(1,1);
        cMap.get(1);
        cMap.remove(1);
    }
}
